User`s guide

4-12
Guide to Printers and Printing
The colon file stores these same values as:
:062:_ _WKV::
:472:w7::%?%S_s%”Courier”%=%tCourier–Bold%e%S_s%”Times–Roman”%=%tTim
es–Bold%e%S_s%”Helvetica”%=%tHelvetica–Bold%e%S_s%”Times–Italic”%=%t
Times–BoldItalic%e%S_s%”Helvetica–Oblique”%=%tHelvetica–BoldOblique%
e%Iw8%;
:370:wl::0
:381:wu::3
Command Aggregate Attributes
Command aggregate attributes, grouped under the _ _CAG group header attribute, store
values such as the command to initialize the printer and the command to restore the printer
after a print job is completed. Attributes in this category begin with the letter c. Typical
command aggregate attributes for a supported PostScript printer are:
_ _CAG COMMAND AGGREGATES
ci Command To Initialize the Printer
%Iez\4%?%G_j%{1}%=%tstatusdict begin%Iat %Iar %?%Gmw%t%IaF%; end%;
cr Command To Restore the Printer at Job End
%o\4%Iex
These same attributes are stored in the colon file as:
:051:_ _CAG::
:144:ci::%Iez\4%?%G_j%{1}%=%tstatusdict begin %Iat %Iar %?%Gmw%t%IaF
%; end%;
:152:cr::%o\4%Iex
(ASCII) Control Code Attributes
The _ _CTL group of virtual printer attributes store ASCII control codes used by the printer.
These attributes begin with the letter a and store such values as the control code used to
advance paper to the next page. The following control codes are typical for a supported
PostScript printer:
_ _CTL CONTROL CODES (ASCII)
aF PostScript Command to Set Simplex/Duplex and Tumble Mode
%?%G_Y%ttrueduplex %?%G_Y%{1}%=%tfalse tumble%etrue
tumble%;%efalseduplex%;
af ASCII Control Code to Advance the Paper to
Top of Next Page (FF)
showpage
ar Cannot access message catalog pioattr1.cat.
%G_6%d setresolution
at Cannot access message catalog pioattr1.cat.
%G_u%d setpapertray
The colon file stores these attributes as follows:
:052:_ _CTL::
:512:aF::%?%G_Y%ttrue duplex %?%G_Y%{1}%=%tfalse tumble%etrue tumble
%;%efalse duplex%;
:113:af::showpage
:119:ar::%G_6%d setresolution
:115:at::%G_u%d setpapertray